[PATCH 5.15 110/247] dmaengine: idxd: set DMA_INTERRUPT cap bit

[Greg Kroah-Hartman]

From: Dave Jiang <dave.jiang@xxxxxxxxx>

[ Upstream commit 4e5a4eb20393b851590b4465f1197a8041c2076b ]

Even though idxd driver has always supported interrupt, it never actually
set the DMA_INTERRUPT cap bit. Rectify this mistake so the interrupt
capability is advertised.

Reported-by: Ben Walker <benjamin.walker@xxxxxxxxx>
Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>
Link: https://lore.kernel.org/r/164971497859.2201379.17925303210723708961.stgit@xxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/dma/idxd/dma.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma/idxd/dma.c b/drivers/dma/idxd/dma.c
index c39e9483206a..acb5681e25ed 100644
--- a/drivers/dma/idxd/dma.c
+++ b/drivers/dma/idxd/dma.c
@@ -181,6 +181,7 @@ int idxd_register_dma_device(struct idxd_device *idxd)
 	INIT_LIST_HEAD(&dma->channels);
 	dma->dev = dev;
 
+	dma_cap_set(DMA_INTERRUPT, dma->cap_mask);
 	dma_cap_set(DMA_PRIVATE, dma->cap_mask);
 	dma_cap_set(DMA_COMPLETION_NO_ORDER, dma->cap_mask);
 	dma->device_release = idxd_dma_release;
-- 
2.35.1